maxKeys = 750;
softKeys = 700;
var IE = (document.all) ? 1 : 0;
var DOM = 0; 
if (parseInt(navigator.appVersion) >=5) {DOM=1};

function txtshow( txt2show )
{
// Detect Browser

    if (DOM)
    {
        var viewer = document.getElementById("txtmsg");
        viewer.innerHTML=txt2show;
    }
    else if(IE)
    {
        document.all["txtmsg"].innerHTML=txt2show;
    }
}

function keyup(what) 
{
    var str = new String(what.value);
    var len = str.length;
    var showstr = "( " + len + " / " + maxKeys + " )";
    if (len > maxKeys) showstr += ' Some information will be lost, please stay below '  + maxKeys + ' characters.';
    if (len > softKeys) txtshow( showstr );
}